Cushion & Baguette Lab-Grown Diamond Engagement Ring in 14K White Gold (3 1/5 ct. tw.), Size 7

Product Overview
A 14K white gold three-stone engagement ring featuring a lab-grown cushion-cut diamond center stone (2.5 ct) with tapered baguette diamond side stones, VS+ clarity and F+ color, totaling 3 1/5 carats. The ring is cast and finished with a polished, rhodium-plated surface.
The three-stone engagement ring is a longstanding bridal format, traditionally read as representing a couple's past, present, and future together. The design has remained a mainstay of engagement jewelry for generations, prized for pairing a prominent center stone with balanced flanking accents.
Key Features
- Crafted in 14K white gold with a polished finish
- Finished with rhodium plating for lasting brilliance
- Approximate weight of 3.04 grams
Precious Metals at Sophia Jewelers
Every piece is crafted from certified precious metals selected for lasting brilliance and skin-safe wear.
14k Gold (Most Popular)
58.3% pure gold. The ideal balance of durability and color richness. Available in yellow gold, white gold, and rose gold. The standard choice for fine jewelry and everyday wear.
18k Gold (Premium)
75% pure gold. Richer in color, slightly softer than 14k. Preferred for statement and heirloom pieces where purity matters most.
10k Gold (Everyday Value)
41.7% pure gold. The most durable gold alloy — ideal for active wearers. Stamped 417 on the piece.
Sterling Silver
92.5% pure silver, stamped 925. Cool-toned and versatile. Best for occasional wear; silver develops a natural patina over time.
Platinum
Naturally white, hypoallergenic, and the most durable precious metal. Recommended for those with nickel sensitivities.
Titanium & Stainless Steel
Lightweight, hypoallergenic, and virtually maintenance-free. Excellent for everyday jewelry and sensitive skin.
Lab-Grown Diamonds
Lab-grown diamonds are physically, chemically, and optically identical to mined diamonds. Same carbon crystal structure, same hardness (10 on the Mohs scale), same brilliance. The difference is origin and price: created in a controlled environment, lab-grown diamonds are typically 50-70% less expensive than comparable mined stones, meaning you get a larger, higher-quality diamond for your budget.
All Sophia Jewelers lab-grown diamonds are conflict-free by definition and independently graded by IGI or GIA using the same 4C criteria applied to mined diamonds: cut, color, clarity, and carat weight.
How to Care for Your Jewelry
Fine jewelry deserves thoughtful care. These guidelines will keep your pieces looking luminous for years.
Daily Wear
- Remove jewelry before swimming, showering, or using cleaning products
- Apply lotion, perfume, and hairspray before putting on your jewelry — chemicals can dull metal and damage stones
- Avoid wearing jewelry during gym workouts or high-contact activities
- Put jewelry on last when getting dressed — last on, first off
Cleaning at Home
Mix a few drops of mild dish soap with warm water. Soak for 15-20 minutes, then gently scrub with a soft toothbrush. Rinse thoroughly and dry with a lint-free cloth. This method is safe for gold, platinum, and most gemstones. Avoid ultrasonic cleaners for pearls, opals, and emeralds.
Storage
Store each piece separately in a soft pouch or compartmentalized jewelry box to prevent scratching. Keep chains flat or hung to avoid tangling. Store silver in anti-tarnish pouches to slow oxidation.
Professional Care
Have precious stone jewelry professionally cleaned and inspected once a year to check prong integrity, stone security, and clasp function. Most jewelers offer this service free of charge.
Shipping
Free standard shipping on all orders over $99. Orders ship within 2–3 business days in insured packaging.
- Standard Shipping: Free on orders over $99 (5-7 business days)
- Expedited Shipping: 2-3 business days (additional fee at checkout)
- Overnight Shipping: Next business day (available for select items)
A tracking number is emailed as soon as your order ships.
Returns and Exchanges
We offer a 30-day return policy on all unworn, unaltered items in original condition with original packaging. Custom-engraved and custom-sized items are not eligible for return.
To begin a return or exchange, email info@sophiajewelers.com with your order number. Our team responds within one business day.
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White Gold Diamond Rings, answered
Straight answers about white gold diamond rings. See all White Gold Diamond Rings
- Free Shipping
- Orders Over $99
- Exchanges
- 30 Days, Including Ring Size
What affects the price of white gold diamond rings?
Diamond weight, diamond type, and band width drive the price. Total carat weight, whether the stones are lab-grown or natural, and how wide and substantial the 14K white gold band is all play a part. Use the Price filter on this page to set a budget.
Which white gold diamond ring styles are most popular?
Men's diamond bands and three stone engagement rings lead the list. Triple bands, crisscross bands, geometric rings, and wedding bands also appear near the top, so slim stackable and wider statement styles both get attention.
Do white gold diamond rings need rhodium plating?
White gold is often rhodium plated, and the plating can wear over time. The metal underneath is naturally a soft off-white, so a slight warm tone may show with years of wear. Our jewelry care page covers keeping rings bright.
What does ct. tw. mean on a diamond ring?
Ct. tw. means total carat weight of all the diamonds combined. A three stone ring listed at 1 ct. tw. adds the center and side stones together, so no single stone is a full carat. Compare it with the band width to judge the look.
How do I choose between a channel setting and a three stone ring?
Channel settings sit flush, while three stone rings stand taller. A channel band holds diamonds in a smooth row inside the metal, which feels sleek for daily wear. A three stone ring puts the focus on the stones, which suits a proposal.
Can I stack slim white gold diamond bands together?
Yes, slim bands stack easily with each other. Pair a 2.9mm wedding band with a crisscross or triple band for texture, keeping the same white gold so the metal matches. For a warmer mix, browse yellow gold diamond rings.